Hello @damian88,
I’m sorry about the lost data, though deactivating & activating the plugin shouldnt casue this. Your SEO data and settings are stored in your WordPress database. Could it be that the related database tables were tampered with? Please try these steps:
- Install & activate the Yoast Test Helper plugin
- Go to Tools > Yoast Test
- Locate the Yoast SEO section and click on the ‘Reset indexables tables & migrations‘, ‘Reset Prominent words calculation‘, and ‘Reset Internal link counter‘ buttons. After each click, the page will reload to confirm that the specific reset was successful.
- Go to SEO > Tools, and under SEO data, click the “Start SEO data optimization” button to allow Yoast to rescan your content.
Please let us know if the reported issue remains after resetting the optimized data.